Enum WfsLiteral 

pub enum WfsLiteral {
    Positive(WfsAtom),
    Negative(WfsAtom),
}

A ground literal in a rule body

Variants

Positive(WfsAtom)

Positive literal: atom must be true

Negative(WfsAtom)

Negative literal: atom must be false

Implementations

impl WfsLiteral

pub fn atom(&self) -> &WfsAtom

Get the underlying atom

pub fn is_positive(&self) -> bool

Check if this is a positive literal

pub fn is_negative(&self) -> bool

Check if this is a negative literal

Trait Implementations

impl Clone for WfsLiteral

fn clone(&self) -> WfsLiteral

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for WfsLiteral

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for WfsLiteral

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for WfsLiteral

fn eq(&self, other: &WfsLiteral) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for WfsLiteral

impl StructuralPartialEq for WfsLiteral